106 citations · 168 across the 7 of their papers we have counts for
3 papers · 1 filter
Observable Gravitational Waves from Hyperkination in Palatini Gravity and Beyond
Samuel Sánchez López, Konstantinos Dimopoulos, Alexandros Karam +1
We consider cosmology with an inflaton scalar field with an additional quartic kinetic term. Such a theory can be motivated by Palatini modified gravity. Assuming a runaway…
Scale-Invariant Model for Gravitational Waves and Dark Matter
Alexandros Karam, Maciej Kierkla, Bogumiła Świeżewska
We have conducted a revised analysis of the first-order phase transition that is associated with symmetry breaking in a classically scale-invariant model that has been extended wit…
Implications of Palatini gravity for inflation and beyond
Ioannis D. Gialamas, Alexandros Karam, Thomas D. Pappas +1
We present an introduction to cosmic inflation in the framework of Palatini gravity, which provides an intriguing alternative to the conventional metric formulation of gravity. In…